Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 22 — The propeller airplane  /  About year 66
22.10

Pilot's licence and the rules of the air

nobody flies alone until they have been taught and tested; rules for height, lights and right of way

SocietyYear 66Stands on 398 earlier

AWhat it needs

Needs 398 other products in all, 3 of them directly.

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